Green 'sky path' opens up 120ft in the air across Welsh valley The viaduct is situated in a "nice quiet location" and has stunning views. The spot is beautiful (Image: @altitudecaptures ) Despite its impressive size and the stunning traversal it offers across the valley below, this 'path in the sky' is still something of a hidden wonder. Tucked away in Eryri National Park, Cwm Prysor Viaduct is off the usual tourist track that annually attracts millions. The viaduct, running 450ft over the landscape, once played a part in the Blaenau Ffestiniog-Bala Railway. Towering at 120ft, the structure features nine gracefully curving arches. ‌ Article continues below Rail operations kicked off in 1882, but by January 1961, the last load of freight had rumbled across the viaduct. The downturn in passenger travel was one thing, but the final straw came with the flooding of the Afon Tryweryn valley to birth Llyn Celyn. Rather than reroute the railway, the decision fell in favour of sprucing up the A4212 road. Following the removal of its tracks within that same decade, mother nature has started to take back parts of this architectural marvel, now identified by a green trail along its summit. While not formally recognised as a public right of way, it serves as a 'permissive path', allowing access through an arrangement between the Eryri National Park Authority and the landowner, according to North Wales Live. ‌ Despite its majestic reach, the viaduct remains a "hidden gem" within a quieter corner of Eryri, positioned between Trawsfynydd and Bala. The site is around a two-hour drive from Liverpool city centre. Though social media might alter its obscurity, the surrounding often waterlogged terrain should keep it from becoming overwhelmed. Cwm Prysor Viaduct in Gwynedd (Image: @altitudecaptures ) This week, a viaduct saw its fame skyrocket on TikTok, captivating the interest of hundreds of thousands when Jason Rees featured it in his video on the account @altitudecaptures. ‌ Jason shared his thoughts on the picturesque spot, and said: "It's situated in a nice quiet location with stunning views. Easily accessible to all hiking levels as the path is flat, although boggy in parts. Great to see nature growing all over the historic viaduct." By Friday evening, his post had hit more than 4,000 likes and close to 1,500 shares, generating a wave of positive feedback. One fan raved: "This is absolutely stunning, where is this," while another expressed their love for nature’s resilience: "I love nature. You build something, abandon it and nature will claim it. Nature accepts everything." The spot is beautiful (Image: @altitudecaptures ) ‌ WelshWonderList joined the chorus of praises with a lively: "Amazing views!" and TheWanderingMum was inspired to visit, saying: "this looks so cool, adding to my wishlist" The footage even became the day's "highlight" for one TikTok user during their scrolling session. Nevertheless, not everyone like Georgina shared the enthusiasm about the beloved spot blowing up online, lamenting, "Oh no. Hafren forest (a popular boardwalk) has been ruined by social media, so here goes another wonderful place." ‌ Despite some concerns, Jason firmly defended the spirit of discovery: "Earth is for exploring. As long as people don't leave any mess behind, we all have the right and freedom to explore new and wonderful places." Georgina raised the alarm that the influx of visitors attracted through Tiktok could potentially "do leave mess", worrying about the pressure on local infrastructure. Article continues below Echoing her sentiments, a fellow resident vented frustration over the littering issues, including bags of abandoned dog waste and uncourteous guests, which triggered a contentious response with the retort, "you can't gatekeep walks". Unlike the welcoming Hafren Forest, this area's challenging terrain is likely to deter large gatherings, regardless of its burgeoning online fame.